Why Are My Teeth So Sensitive?

Teeth sensitivity to cold, also known as dentin hypersensitivity, is a common dental issue that many people experience. It occurs when the protective layer of enamel on the teeth wears down or when the tooth’s root surface becomes exposed. Several factors can contribute to teeth sensitivity to cold:

  1. Enamel Erosion: The outer layer of your teeth is called enamel, and it serves as a protective barrier. Acidic foods and beverages, frequent consumption of sugary or acidic foods, and aggressive brushing can wear down the enamel over time, exposing the more sensitive dentin underneath.
  2. Gum Recession: When your gums recede, the roots of your teeth may become exposed. The root surface is not protected by enamel and contains tiny channels called dentinal tubules that lead to the nerves inside the tooth. When cold substances come into contact with these tubules, it can trigger sensitivity.
  3. Tooth Decay: Cavities or tooth decay can cause sensitivity when the cold temperature reaches the nerves inside the tooth.
  4. Teeth Grinding (Bruxism): Frequent grinding or clenching of teeth can wear down the enamel, making the teeth more sensitive to cold and other stimuli.
  5. Tooth Whitening Products: Some over-the-counter or professional teeth whitening products contain chemicals that can lead to temporary tooth sensitivity.
  6. Dental Procedures: Certain dental treatments, such as dental cleanings, fillings, or crown placements, can cause temporary sensitivity to cold.
  7. Cracked Teeth: Cracks or fractures in teeth can expose the sensitive dentin, leading to cold sensitivity.
  8. Acid Reflux: Frequent acid reflux can cause stomach acids to come into contact with teeth, leading to enamel erosion and sensitivity.
  9. Age: As we age, the enamel on our teeth may naturally wear down, making them more prone to sensitivity.

If you’re experiencing teeth sensitivity to cold, it’s essential to see your dentist to determine the underlying cause. They can perform a thorough examination, identify the source of sensitivity, and recommend appropriate treatments or preventive measures. In some cases, using desensitizing toothpaste, avoiding acidic foods and beverages, using a soft-bristled toothbrush, or applying dental sealants may help alleviate the sensitivity. For more severe cases, your dentist may recommend other treatments, such as fluoride varnishes, dental bonding, or gum grafting, to address the issue.

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